如何从R检查OS X版本? [英] How to check the OS X version from R?

问题描述

您可以使用 Sys.info()["sysname"] =="Darwin" 检查是否正在运行OS X.

You can check whether you are running OS X using Sys.info()["sysname"] == "Darwin".

在Windows上，可以通过使用 utils :: win.version()检查操作系统的特定版本来进行更好的控制.

On Windows, finer control is possible by checking for specific versions of the OS using utils::win.version().

如何检查OS X的版本?(我找不到 mac.version 或 osx.version 函数.有一些低级OS命令可用于查找版本，但我不知道任何R包装器.)

How do you check the version of OS X? (I can't find a mac.version or osx.version function. There are some low-level OS commands for finding the version, but I'm not aware of any R wrapper.)

Sys.info()["release"] 或 system("uname --kernel-release"，intern = TRUE)是否返回有用的东西?(我没有机器可以检查.)

Do Sys.info()["release"] or system("uname --kernel-release", intern = TRUE) return anything useful? (I don't have a machine to check.)

推荐答案

Sys.info()["sysname"] 在Mac OS X上返回"Darwin".

Sys.info()["sysname"] returns "Darwin" on Mac OS X.

Sys.info()[版本"] 告诉您Mac OS X的版本.例如，"13.4.0"是Mac OS X 10.9.5.

Sys.info()["release"] tells you what version of Mac OS X. For example, "13.4.0" is Mac OS X 10.9.5.

可能不需要执行 system()调用: Sys.info()["version"] 似乎返回与完全相同的结果系统("uname -v").而且此版本确实结合了不同的信息，因此不方便仅检查您是否在Mac上运行.例如

There probably is no need to do a system() call: Sys.info()["version"] seems to return exactly the same as system("uname -v"). And this version really combines different pieces of information and is not convenient for just checking whether or not you're running on Mac. For example

> Sys.info()["version"]
version
"Darwin Kernel Version 13.4.0: Wed Mar 16 09:03:04 PDT 2015; root:xnu-2422.115.14~1/RELEASE_X86_64"

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